JP4014170B2 - Vehicle engine mounting device - Google Patents

Vehicle engine mounting device Download PDF

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Publication number
JP4014170B2
JP4014170B2 JP2005136320A JP2005136320A JP4014170B2 JP 4014170 B2 JP4014170 B2 JP 4014170B2 JP 2005136320 A JP2005136320 A JP 2005136320A JP 2005136320 A JP2005136320 A JP 2005136320A JP 4014170 B2 JP4014170 B2 JP 4014170B2
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engine
drive unit
vehicle body
mount
rod member
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JP2005289371A (en
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直彦 大庭
一夫 宮川
昌憲 南
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Honda Motor Co Ltd
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Description

本発明は、エンジンと変速機とから成る駆動ユニットを搭載する車両用エンジンマウント装置に関する。   The present invention relates to an engine mount device for a vehicle on which a drive unit including an engine and a transmission is mounted.

従来、駆動ユニットは車体に複数のマウント部材を介して支持されており、駆動ユニットを横置きする場合には、更に、駆動ユニットのローリングに対するストッパ作用を得るために、上下２箇所のストッパマウント部材を設けている。   Conventionally, the drive unit is supported on the vehicle body via a plurality of mount members, and when the drive unit is placed horizontally, in order to obtain a stopper action against rolling of the drive unit, two stopper mount members at the top and bottom Is provided.

ところで、最近は衝突時に車体の変形で衝突エネルギーを吸収するような構造が採用されているが、駆動ユニットは剛性が高いため、車体のクラッシャブルストロークが駆動ユニットにより規制され、衝突エネルギーの吸収量を確保する上で車体の設計の自由度が制約されている。   Recently, a structure that absorbs collision energy by deformation of the vehicle body at the time of a collision has been adopted, but since the drive unit has high rigidity, the crushable stroke of the vehicle body is regulated by the drive unit, and the amount of collision energy absorbed The degree of freedom in designing the vehicle body is limited in securing the vehicle.

本発明は、以上の点に鑑み、駆動ユニットのロールングを効率良く抑えつつ、駆動ユニットによる車体のクラッシャブルストロークの規制を可及的に緩和できるようにしたエンジンマウント装置を提供することをその目的としている。 The present invention has been made in view of the above points, and an object thereof is to provide an engine mount device capable of reducing the restriction of the crushable stroke of the vehicle body by the drive unit as much as possible while efficiently suppressing the rolling of the drive unit. It is said.

上記目的を達成すべく、本発明は、エンジンと変速機とから成る駆動ユニットを、その長手方向が車両の前後方向と直交するように横置きに搭載する車両用エンジンマウント装置において、前記駆動ユニットは、その静荷重の全てが車体に下方から取り付けられるサブフレーム上に３個のマウント部材を介して支持されるとともに、これらマウント部材のうちの１つは前記エンジンの変速機と反対側の端部下方に配置され、前記エンジンの変速機と反対側の端部上方に車体に連結する前後方向に長手のロッド部材を設け、前記ロッド部材は前記エンジンと車体とに枢支結合し、前記ロッド部材の前記エンジンに対する連結部と車体に対する連結部とのどちらか一方に駆動ユニットのローリング方向の変位を弾性的に規制する弾性部材を設けたことを特徴とする。 In order to achieve the above object, the present invention provides a vehicle engine mounting apparatus in which a drive unit comprising an engine and a transmission is mounted horizontally so that the longitudinal direction thereof is perpendicular to the longitudinal direction of the vehicle. Is supported by three mounting members on a subframe attached to the vehicle body from below, and one of these mounting members is an end opposite to the transmission of the engine. disposed subordinate side, a longitudinal rod member in the longitudinal direction connected to the vehicle body is provided above the end of the transmission opposite of the engine, the rod member engages pivot支結to said engine and a vehicle body, the rod rolling direction of displacement of one or the other to the drive unit and the coupling portion for coupling portion and the vehicle body is provided an elastic member for elastically regulations for the engine of the member And wherein the door.

衝突時にはロッド部材の車体側と駆動ユニット側の連結部間の前後方向距離が車体の潰れに伴って短くなり、ロッド部材の配置を適宜傾斜させる等により、該連結部に連結される駆動ユニットが強制的に押し下げられ、駆動ユニットの搭載部でも車体が潰れるようになる。そのため、駆動ユニットによる車体のクラッシャブルストロークの規制が緩和される。 In the event of a collision, the longitudinal distance between the connecting portion of the rod member on the vehicle body side and the driving unit side becomes shorter as the vehicle body is crushed, and the drive unit connected to the connecting portion is appropriately inclined by, for example, tilting the arrangement of the rod member. The car body is crushed even when the drive unit is mounted. Therefore, the restriction of the crushable stroke of the vehicle body by the drive unit is relaxed.

また、上記の如くロッド部材のエンジンに対する連結部と車体に対する連結部とのどちらか一方に弾性部材を取付けておけば、エンジンの変速機と反対側の端部下方のマウント部材およびロッド部材を介して駆動ユニットのローリングに対するストッパ作用を得られる。 Further, as described above, if an elastic member is attached to either the connecting portion of the rod member to the engine or the connecting portion to the vehicle body , the mounting member and the rod member below the end on the opposite side of the engine transmission are interposed. Thus, a stopper action against the rolling of the drive unit can be obtained.

以上の説明から明らかなように、本発明によれば、駆動ユニットの静荷重の全てがサブフレーム上の３個のマウント部材を介して支持されていることと、エンジンが前後方向に長手のロッドを介して車体に連結されていることにより、駆動ユニットの押し下げで駆動ユニットによる車体のクラッシャブルストロークの規制が緩和されるため、衝突エネルギーの吸収量の確保が容易になり、車体の設計の自由度が増す。また、ロッド部材のエンジンに対する連結部と車体に対する連結部とのどちらか一方に弾性部材を設けることにより、エンジンの変速機と反対側の端部下方のマウント部材およびロッド部材を駆動ユニットのローリングに対するストッパ用マウント部材に兼用することもでき、構造の簡素化を図れる。 As is clear from the above description, according to the present invention, all of the static load of the drive unit is supported via the three mounting members on the subframe, and the engine is a rod that is long in the front-rear direction. Since the restriction of the crushable stroke of the vehicle body by the drive unit is eased by pushing down the drive unit, it is easy to secure the amount of collision energy absorption and freedom of vehicle body design. The degree increases. Further, by providing an elastic member on either the connecting portion of the rod member to the engine or the connecting portion to the vehicle body , the mount member and the rod member below the end on the opposite side of the engine transmission are connected to the rolling of the drive unit. It can also be used as a stopper mounting member, and the structure can be simplified.

図１及び図２を参照して、１は自動車のエンジンルームの左右両側部に設けられるフロントサイドフレームであり、該両サイドフレーム１，１間に下方から取付けられるサブフレーム２に、エンジン３とその一端に連結した変速機４とから成る駆動ユニット５をその長手方向が車長方向、即ち、前後方向と直交するように横置きに搭載している。   Referring to FIGS. 1 and 2, reference numeral 1 denotes a front side frame provided on both left and right sides of an engine room of an automobile. A drive unit 5 comprising a transmission 4 connected to one end thereof is mounted horizontally so that its longitudinal direction is perpendicular to the vehicle length direction, that is, the front-rear direction.

変速機４は、ミッションケース４ａと、エンジン３のシリンダブロック３ａとミッションケース４ａとの間に介設されるクラッチケースやトルクコンバータケースから成る中間ケース４ｂとを備えており、中間ケース４ｂの後側部にはデフギアを収納するデフケース部４ｃが一体に形成されている。   The transmission 4 includes a transmission case 4a and an intermediate case 4b including a clutch case and a torque converter case interposed between the cylinder block 3a of the engine 3 and the transmission case 4a. A differential case portion 4c for housing the differential gear is integrally formed on the side portion.

図中３ｂは吸気マニホルド、３ｃは排気マニホルドカバー、３ｄはタイミングベルトカバーである。   In the figure, 3b is an intake manifold, 3c is an exhaust manifold cover, and 3d is a timing belt cover.

駆動ユニット５は、その長手方向に直交する幅方向両側、即ち、前側と後側とに分設した２個のマウント部材６，７と、エンジン３側の端部に設けたマウント部材８との計３個のマウント部材でサブフレーム２上に支持されている。図１でＧは駆動ユニット５の重心位置を示している。 The drive unit 5 includes two mount members 6 and 7 provided on both sides in the width direction perpendicular to the longitudinal direction, that is, the front side and the rear side, and a mount member 8 provided at an end portion on the engine 3 side. A total of three mounting members are supported on the subframe 2. In FIG. 1, G indicates the position of the center of gravity of the drive unit 5.

ここで、前側のマウント部材６は、ミッションケース４ａの中間ケース４ｂ側の端部の前方位置においてサブフレーム２のフロントビーム２ａ上に取付けられており、該マウント部材６上にミッションケース４ａの該端部に固定した前方にのびるマウントブラケット６ａを連結した。また、後側のマウント部材７は、これと前側のマウント部材６の配置部とを結ぶ線Ｌが駆動ユニット５のトルクロール軸Ｔに略直交するように、エンジン３と中間ケース４ｂとの接合部の後方位置においてサブフレーム２のリヤビーム２ｂとその前側の補強ビーム２ｃとの間に跨がるように取付けられており、該マウント部材７上に中間ケース４ｂのデフケース部４ｃの端面に固定した後方にのびるマウントブラケット７ａを連結した。前後のマウント部材６，７は上下方向の振動に対しての優れた減衰効果を発揮する流体封入マウントで構成されており、更に、前側のマウント部材６は減衰特性を切換可能な特性切換式に構成されている。   Here, the front mounting member 6 is mounted on the front beam 2a of the subframe 2 at a position in front of the end of the transmission case 4a on the intermediate case 4b side. A front mounting bracket 6a fixed to the end was connected. Further, the rear mount member 7 is joined to the engine 3 and the intermediate case 4b so that a line L connecting this and the arrangement portion of the front mount member 6 is substantially perpendicular to the torque roll axis T of the drive unit 5. It is attached so as to straddle between the rear beam 2b of the subframe 2 and the reinforcing beam 2c on the front side of the subframe 2 at a rear position of the portion, and is fixed to the end surface of the differential case portion 4c of the intermediate case 4b on the mount member 7 The mounting bracket 7a extending backward is connected. The front and rear mount members 6 and 7 are composed of fluid-filled mounts that exhibit an excellent damping effect against vibrations in the vertical direction, and the front mounting member 6 is a characteristic switching type that can switch the damping characteristics. It is configured.

以上の如く、前後のマウント部材６，７を両者の配置部を結ぶ線Ｌが駆動ユニット５のトルクロール軸Ｔに略直交するように配置すれば、駆動ユニット５のトルクロール軸Ｔ回りのローリングに対しピッチングやヨーイングといった他の動きを非連成化して、ローリング振動を前後のマウント部材６，７で効率良く減衰できるようになる。更に、前後のマウント部材６，７が駆動ユニット５の長手方向に離間配置されることになるため、両マウント部材６，７により駆動ユニッット５のピッチング振動も減衰できるようになる。   As described above, if the front and rear mounting members 6 and 7 are arranged so that the line L connecting the arrangement portions thereof is substantially orthogonal to the torque roll axis T of the drive unit 5, rolling around the torque roll axis T of the drive unit 5 is performed. On the other hand, other movements such as pitching and yawing are made uncoupled so that the rolling vibration can be efficiently damped by the front and rear mounting members 6 and 7. Furthermore, since the front and rear mount members 6 and 7 are spaced apart in the longitudinal direction of the drive unit 5, the pitching vibration of the drive unit 5 can be attenuated by both the mount members 6 and 7.

端部のマウント部材８は、サブフレーム２のサイドビーム２ｄ上に取付けられており、該マウント部材８上にエンジン３のシリンダブロック３ａに固定した横方向外方にのびるマウントブラケット８ａを連結した。尚、該マウント部材８は、図３及び図４に示す如く、アッパ８ｂとロア８ｃとの間に弾性体８ｄを介設したゴムマウントで構成されており、弾性体８ｄにアッパ８ｂを支持する左右１対の支柱部８ｅと前後方向に突出する前後１対の受部８ｆとを形成し、更に、受部８ｆに対して前後方向に対向する端部を有するストッパプレート８ｇをアッパ８ｂに植設したボルト８ｈによりマウントブラケット８ａと共にアッパ８ｂ上に共締めし、受部８ｆへのストッパプレート８ｇの当接で前後方向の変位を規制し得るようにした。   The end mount member 8 is mounted on the side beam 2d of the subframe 2, and a mount bracket 8a extending outward in the lateral direction fixed to the cylinder block 3a of the engine 3 is connected to the mount member 8. As shown in FIGS. 3 and 4, the mount member 8 is constituted by a rubber mount having an elastic body 8d interposed between the upper 8b and the lower 8c, and supports the upper 8b on the elastic body 8d. A pair of left and right support columns 8e and a pair of front and rear receiving portions 8f projecting in the front-rear direction are formed, and a stopper plate 8g having an end facing the receiving portion 8f in the front-rear direction is planted in the upper 8b. The mounted bolt 8h is fastened together with the mount bracket 8a on the upper 8b so that the displacement in the front-rear direction can be regulated by the contact of the stopper plate 8g with the receiving portion 8f.

また、エンジン３の端部上方と、車体のダンパハウジング１ａとに夫々ブラケット９ａ、９ｂを固定して、両ブラケット９ａ、９ｂ間に前後方向に長手のロッド部材９を設け、該ロッド部材９の前端を枢軸兼用のボルト９ｃを介してエンジン３側のブラケット９ａに連結すると共に、ロッド部材９の後端にゴムブッシュから成る弾性部材９ｄを固設して、該弾性部材９ｄをこれに嵌合する枢軸兼用のボルト９ｅを介して車体側のブラケット９ｂに連結した。 Further, brackets 9a and 9b are respectively fixed to the upper end of the engine 3 and the damper housing 1a of the vehicle body, and a longitudinal rod member 9 is provided between the brackets 9a and 9b in the front-rear direction. The front end is connected to the bracket 9a on the engine 3 side via a pivotal bolt 9c, and an elastic member 9d made of a rubber bush is fixed to the rear end of the rod member 9, and the elastic member 9d is fitted to this. was connected to the vehicle body side bracket 9b and through the bolts 9e pivot also serves to.

ここで、駆動ユニット５がトルクロール軸Ｔ回りにローリングしたとき、トルクロール軸Ｔのエンジン端部側の端点ＴＰより下方に位置するマウント部材８に対する連結部と該端点ＴＰより上方に位置するロッド部材９に対する連結部は前後方向に変位し、かくて、前記ストッパプレート８ｇによるマウント部材８の前後方向の変位規則と、前記弾性部材９ｄによるロッド部材９の前後方向の変位規制とにより、駆動ユニット５のローリングに対するストッパ作用を得られる。尚、弾性部材９ｄはロッド部材９ｄのエンジン側ブラケット９ａに対する連結部に設けても良い。   Here, when the drive unit 5 rolls around the torque roll shaft T, the connecting portion to the mount member 8 positioned below the end point TP on the engine end side of the torque roll shaft T and the rod positioned above the end point TP. The connecting portion with respect to the member 9 is displaced in the front-rear direction. Thus, the drive unit is determined by the displacement rule in the front-rear direction of the mount member 8 by the stopper plate 8g and the displacement restriction in the front-rear direction of the rod member 9 by the elastic member 9d. The stopper action for rolling No. 5 can be obtained. The elastic member 9d may be provided at a connecting portion of the rod member 9d to the engine side bracket 9a.

また、ロッド部材９はエンジン３側のブラケット９ａに対する前端の連結部の方が車体側のブラケット９ｂに対する後端の連結部よりも下方に位置するように前下りに傾斜している。そのため、衝突時にフロントサイドフレーム１の潰れに伴って前記両ボルト９ｃ，９ｅ間の前後方向距離が短くなったとき、図５に示す如く、ロッド部材９がより大きな角度で前下りに揺動し、駆動ユニット５がロッド部材９を介して車体に対し押し下げられる。この際、マウント部材８の弾性体８ｄの支柱部８ｅが破断する。そして、駆動ユニット５が押し下げられるために、引続く車体の潰れに伴って駆動ユニット５が図示しないダッシュボードロアに沿ってフロアの下方に潜り込み得るようになり、ダッシュボードの前側に駆動ユニット５が挾み込まれて車体のクラッシャブルストロークが規制されるといった不具合を生じない。   Further, the rod member 9 is inclined forward and downward so that the connecting portion at the front end with respect to the bracket 9a on the engine 3 side is positioned below the connecting portion at the rear end with respect to the bracket 9b on the vehicle body side. Therefore, when the front / rear direction distance between the bolts 9c and 9e becomes short as the front side frame 1 is crushed during a collision, the rod member 9 swings forward and downward at a larger angle as shown in FIG. The drive unit 5 is pushed down with respect to the vehicle body via the rod member 9. At this time, the support column 8e of the elastic body 8d of the mount member 8 is broken. Since the drive unit 5 is pushed down, the drive unit 5 can sink below the floor along a dashboard lower (not shown) as the vehicle body continues to be crushed, and the drive unit 5 is located on the front side of the dashboard. It does not cause a problem that the crushable stroke of the vehicle body is restricted by being swallowed.

尚、上記実施例ではロッド部材９をエンジン３側の端部に設けたが、変速機４側の端部にロッド部材を設けても良く、更には、エンジン側と変速機側の両端部にロッド部材を設けても良い。   In the above embodiment, the rod member 9 is provided at the end portion on the engine 3 side. However, a rod member may be provided at the end portion on the transmission 4 side, and further, at both ends on the engine side and the transmission side. A rod member may be provided.

本発明装置の一例の平面図Plan view of an example of the device of the present invention その側面図Its side view 端部のマウント部材の拡大側面図Enlarged side view of end mount member 図３の矢印ＩＶ方向から見たマウント部材の正面図The front view of the mount member seen from the direction of arrow IV in FIG. 衝突時の状態を示す図２に対応する側面図Side view corresponding to FIG. 2 showing the state at the time of collision

符号の説明Explanation of symbols

３ エンジン ４ 変速機
５ 駆動ユニット ９ ロッド部材
９ｄ 弾性部材 3 Engine 4 Transmission 5 Drive unit 9 Rod member 9d Elastic member

Claims (1)

エンジンと変速機とから成る駆動ユニットを、その長手方向が車両の前後方向と直交するように横置きに搭載する車両用エンジンマウント装置において、
前記駆動ユニットは、その静荷重の全てが車体に下方から取り付けられるサブフレーム上に３個のマウント部材を介して支持されるとともに、これらマウント部材のうちの１つは前記エンジンの変速機と反対側の端部下方に配置され、
前記エンジンの変速機と反対側の端部上方に車体に連結する前後方向に長手のロッド部材を設け、前記ロッド部材は前記エンジンと車体とに枢支結合し、
前記ロッド部材の前記エンジンに対する連結部と車体に対する連結部とのどちらか一方に駆動ユニットのローリング方向の変位を弾性的に規制する弾性部材を設けた
ことを特徴とする車両用エンジンマウント装置。 In a vehicle engine mount device in which a drive unit composed of an engine and a transmission is mounted horizontally so that its longitudinal direction is perpendicular to the longitudinal direction of the vehicle,
The drive unit is supported by three mount members on a subframe in which all the static loads are attached to the vehicle body from below, and one of these mount members is opposite to the engine transmission. Located below the end of the side,
Wherein the longitudinal rod member arranged in the longitudinal direction connected to the vehicle body above the end of the transmission opposite side of the engine, the rod member engages pivot支結to said engine and a vehicle body,
An engine mount device for a vehicle, wherein an elastic member that elastically restricts displacement of the drive unit in the rolling direction is provided on one of the connecting portion of the rod member to the engine and the connecting portion of the vehicle body .
JP2005136320A 2005-05-09 2005-05-09 Vehicle engine mounting device Expired - Lifetime JP4014170B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005136320A JP4014170B2 (en) 2005-05-09 2005-05-09 Vehicle engine mounting device

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Application Number Priority Date Filing Date Title
JP2005136320A JP4014170B2 (en) 2005-05-09 2005-05-09 Vehicle engine mounting device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP27532994A Division JPH08132889A (en) 1994-11-09 1994-11-09 Engine mounting device for vehicle

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JP2005289371A JP2005289371A (en) 2005-10-20
JP4014170B2 true JP4014170B2 (en) 2007-11-28

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